test/exec/semtorture.c

   1 #include <exec/semaphores.h>
   2 #include <dos/dos.h>
   3 #include <intuition/intuition.h>
   4 #include <graphics/gfx.h>
   5 #include <utility/hooks.h>
   6
   7 #include <proto/exec.h>
   8 #include <proto/dos.h>
   9 #include <proto/intuition.h>
  10 #include <proto/graphics.h>
  11
  12 #include <clib/alib_protos.h>
  13
  14 #include <stdio.h>
  15 #include <string.h>
  16 #include <stdlib.h>
  17
  18 /****************************************************************************************/
  19
  20 struct IntuitionBase *IntuitionBase;
  21 struct GfxBase *GfxBase;
  22
  23 static struct Screen *scr;
  24 static struct Window *win;
  25 static struct Task   *task1, *task2, *maintask;
  26
  27 static struct SignalSemaphore sem;
  28
  29 /****************************************************************************************/
  30
  31 static void Cleanup(char *msg)
  32 {
  33     WORD rc;
  34
  35     if (msg)
  36     {
  37         printf("semtorture: %s\n",msg);
  38         rc = RETURN_WARN;
  39     } else {
  40         rc = RETURN_OK;
  41     }
  42
  43     Forbid();
  44     if (task1) DeleteTask(task1);
  45     if (task2) DeleteTask(task2);
  46     Permit();
  47
  48     if (win) CloseWindow(win);
  49     if (scr) UnlockPubScreen(0,scr);
  50
  51     if (GfxBase) CloseLibrary((struct Library *)GfxBase);
  52     if (IntuitionBase) CloseLibrary((struct Library *)IntuitionBase);
  53
  54     exit(rc);
  55 }
  56
  57 /****************************************************************************************/
  58
  59 static void Init(void)
  60 {
  61     InitSemaphore(&sem);
  62 }
  63
  64 /****************************************************************************************/
  65
  66 static void OpenLibs(void)
  67 {
  68     if (!(IntuitionBase = (struct IntuitionBase *)OpenLibrary("intuition.library",39)))
  69     {
  70         Cleanup("Can't open intuition.library V39!");
  71     }
  72
  73     if (!(GfxBase = (struct GfxBase *)OpenLibrary("graphics.library",39)))
  74     {
  75         Cleanup("Can't open graphics.library V39!");
  76     }
  77
  78 }
  79
  80 /****************************************************************************************/
  81
  82 static void GetVisual(void)
  83 {
  84     if (!(scr = LockPubScreen(0)))
  85     {
  86         Cleanup("Can't lock pub screen!");
  87     }
  88 }
  89
  90 /****************************************************************************************/
  91
  92 static void MakeWin(void)
  93 {
  94     if (!(win = OpenWindowTags(0,WA_PubScreen,(IPTR)scr,
  95                                  WA_Left,10,
  96                                  WA_Top,10,
  97                                  WA_Width,300,
  98                                  WA_Height,scr->WBorTop + scr->Font->ta_YSize + 1,
  99                                  WA_Title,(IPTR)"Press RETURN key to start!",
 100                                  WA_SimpleRefresh,TRUE,
 101                                  WA_CloseGadget,TRUE,
 102                                  WA_DepthGadget,TRUE,
 103                                  WA_DragBar,TRUE,
 104                                  WA_Activate,TRUE,
 105                                  WA_IDCMP,IDCMP_CLOSEWINDOW |
 106                                           IDCMP_VANILLAKEY |
 107                                           IDCMP_REFRESHWINDOW,
 108                                  TAG_DONE)))
 109     {
 110         Cleanup("Can't open window!");
 111     }
 112
 113     ScreenToFront(win->WScreen);
 114
 115 }
 116
 117 /****************************************************************************************/
 118
 119 static void Task1(void)
 120 {
 121     int a = 1, b = 2, c = 3;
 122
 123     for(;;)
 124     {
 125         ObtainSemaphore(&sem);
 126         a += b + c;
 127         b += a + c;
 128         c += a + b;
 129         ReleaseSemaphore(&sem);
 130     }
 131 }
 132
 133 /****************************************************************************************/
 134
 135 static void Task2(void)
 136 {
 137     int a = 1, b = 2;
 138
 139     for(;;)
 140     {
 141         ObtainSemaphore(&sem);
 142         a -= b;
 143         b += a;
 144         ReleaseSemaphore(&sem);
 145     }
 146 }
 147
 148 /****************************************************************************************/
 149
 150 static void MakeTasks(void)
 151 {
 152     maintask = FindTask(NULL);
 153
 154     task1 = CreateTask("Task 1", 0, Task1, 40000);
 155     task2 = CreateTask("Task 2", 0, Task2, 40000);
 156
 157     if (!task1 || !task2) Cleanup("Can't create tasks!");
 158
 159 }
 160
 161 /****************************************************************************************/
 162
 163 static void Action(void)
 164 {
 165     SetWindowTitles(win, "Test started! Cannot be aborted!", (STRPTR)~0);
 166     Delay(50);
 167     MakeTasks();
 168 }
 169
 170 /****************************************************************************************/
 171
 172 static void HandleAll(void)
 173 {
 174     struct IntuiMessage *msg;
 175
 176     BOOL quitme = FALSE;
 177
 178     while(!quitme)
 179     {
 180         WaitPort(win->UserPort);
 181         while ((msg = (struct IntuiMessage *)GetMsg(win->UserPort)))
 182         {
 183             switch(msg->Class)
 184             {
 185                 case IDCMP_CLOSEWINDOW:
 186                     quitme = TRUE;
 187                     break;
 188
 189                 case IDCMP_REFRESHWINDOW:
 190                     BeginRefresh(win);
 191                     EndRefresh(win,TRUE);
 192                     break;
 193
 194                 case IDCMP_VANILLAKEY:
 195                     if (msg->Code == 13) Action();
 196                     break;
 197
 198             }
 199             ReplyMsg((struct Message *)msg);
 200         }
 201     }
 202 }
 203
 204 /****************************************************************************************/
 205
 206 int main(void)
 207 {
 208     Init();
 209     OpenLibs();
 210     GetVisual();
 211     MakeWin();
 212     HandleAll();
 213     Cleanup(0);
 214     return 0;
 215 }
 216
 217 /****************************************************************************************/
 218 /****************************************************************************************/
 219 /****************************************************************************************/
 220 /****************************************************************************************/